Tricky question, because you said 'one face'. A face is usually associated with a three-dimensional object, and a side is usually associated with a two-dimensional object.
However, I think I know what you're getting at: It could appear to be a sphere (three dimensional). It is a circle (two dimensional). Keep in mind, that spheres technically have an infinite number of faces (not one), but it's deceiving because you can't see the individual faces of a sphere as they are infinitesimally small and the mind wants to think of it as having only one face since a sphere looks exactly the same no matter what angle you're viewing it from. A circle has one face, of course -- but infinite _sides_. How does that answer your question?
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A cone.
A cylinder
A cylinder
A cylinder.
hemisphere